/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

export class GsonIterator<T> {
  private index: number = 0;
  private length: number = 0;
  private contents: Array<T>;

  constructor(contents: Array<T>) {
    this.contents = contents;
    this.length = contents.length;
  }

  public getNextIndex(): number {
    return this.index;
  }

  public getLength(): number {
    return this.length;
  }

  public getContents(): Array<T> {
    return this.contents;
  }

  public hasNext(): boolean {
    if (this.index < this.length) {
      return true;
    } else {
      return false;
    }
  }

  public next(): T {
    if (this.hasNext()) {
      let content = this.contents[this.index];
      this.index++;
      return content;
    }
    return null;
  }
}